Kelly said officers near the area responded to the 400 block of Arthur Street after hearing a gunshot around 8:20 p.m., they soon found the body of the victim lying near a local pizzeria.

Police initially thought the death was a result of a drive-by shooting, Kelly said. And though officers continue to investigate the shooting as a "suspicious death," witness told police the victim shot himself.

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Police have not located the weapon used in the shooting and, along with San Antonio firefighters, are actively searching the area, according to Kelly.